My daughter complained the shelf in her cabinet is wobbly so I checked and found out that 1 of the support piece underneath the shelf is broken. So I took out another 1 of the existing support piece and made a simple one to replace the broken part. It is made of PLA (that's all I have with me), so I upsized it a bit to hopefully compensate for the lack of strength. Printed on a Creality Ender 3 v2.

p/s: I didn't search in Thingiverse if such a thing exist already or not. Just created and printed without much thought Uploading here is an afterthought. Sorry.